(19)
(11) EP 1 157 459 A1

(12)

(43) Date of publication:
28.11.2001 Bulletin 2001/48

(21) Application number: 00908800.6

(22) Date of filing: 23.02.2000
(51) International Patent Classification (IPC)7H03H 7/38
(86) International application number:
PCT/US0004/858
(87) International publication number:
WO 0051/232 (31.08.2000 Gazette 2000/35)
(84) Designated Contracting States:
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

(30) Priority: 25.02.1999 US 258184

(71) Applicant: FORMFACTOR, INC.
Livermore, CA 94550 (US)

(72) Inventor:
  • MILLER, Charles, A.
    Fremont, CA 94539 (US)

(74) Representative: Käck, Jürgen et al
Kahler, Käck, Fiener et Col.Vorderer Anger 268
86899 Landsberg
86899 Landsberg (DE)

   


(54) FILTER STRUCTURES FOR INTEGRATED CIRCUIT INTERFACES